Title :
A low-cost bipolar pulse generator for high-frequency ultrasound applications
Author :
Xu, Xiaochen ; Yen, Jesse T. ; Shung, K. Kirk
Author_Institution :
Dept. of Biomed. Eng., Southern California Univ., Los Angeles, CA
fDate :
2/1/2007 12:00:00 AM
Abstract :
A design of a low-cost bipolar pulse generator for high-frequency (HF) ultrasound applications is presented. The pulse generator can produce N cycle (1-255 cycles) bipolar pulses with center frequency over 60 MHz. The measured pulse amplitude was over 160 Vpp, and the pulse ringing was less than 0.3 Vpp (i.e., signal-to-ring ratio is 55 dB). The pulser can be used in high-frequency ultrasound Doppler and B-mode imaging applications with arrays
Keywords :
pulse generators; ultrasonic imaging; B-mode imaging applications; high-frequency ultrasound Doppler; high-frequency ultrasound applications; low-cost bipolar pulse generator; Counting circuits; Delay; Frequency; Hafnium; MOSFET circuits; Phased arrays; Pulse generation; Pulse measurements; Timing; Ultrasonic imaging; Electronics; Equipment Design; Equipment Failure Analysis; Radio Waves; Signal Processing, Computer-Assisted; Ultrasonography;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2007.259
